John l



J. L. HADDEN;

Water Cooler.

No. 77,280. A V Patented April 28, 1868'.

Joy

6,5,5 8,5 Ewen? Y N. PETERS. PHOTO-LITHOGRAPMER, WASHINGTON D c gottentans gaunt ffirz'.

Letters Patent No. 77,280, dated April 28, 1868,

IMPROVED WATER-GOOIER.

til fizlgrhule mum in in than some finial me making part at In time.

TO ALL WHOM IT MAY CONOERNi Be it known'that I, JOHN L. HADDEN, of thecity of Philadelphia, in the State of Pennsylvania, have invented a newand useful Improvementin the Portable Sheet-Metal Water-Cooler; and I dohereby declare that the following is a full, clear, and exactdescription of the same, reference being had te the accompanyingdrawings, making a part of this spe'c'ificatiomin which-1 i v I Figure 1is a vertical central section of the lower end of the inner cylinder ofa portable sheet-metal watercooler, having my improvement appliedthereto, and v Figure 2 a plane view of the bottom of the said cylinder7 Like letters of reference indicating the same parts when in bothfigures. V l

The object of myimprovement is to render the sheet-metal bottom of theinner cylinder of a cooler secure against being broken through, cracked,indented, or otherwise injured by'the dropping of the ice-lumps into thecylinder, in replenishing it; and my invention consists in corrugatingthe said bott'om'so as to give it the raised or general conical form,substantially as hereinafter deseribednnd set'forth.

Referringto the drawings, Ais theusunl body or vertical sides of theinner cylinder of a cooler, and B. the improved corrugated conicalbottom of the same, the faint lines in fig. 1 indicating the usualexternal cylinder and foot-flange. i I

I Thebottom, B, is formed by taking a fiat disk of the sheet metal,(iusually sheet iron',) and, by means'of a pair of stamping-dies, givingit the general conical formdand the corrugations b bradiating from itscentre, as represented in the drawings. It is then secured,'with itsraised or conical side upward, to the lower end 'oi' the cylinder A bymeans of the usual interlapping sea-m a, substantially as represented infig. 1, and,-finally, the

.whole cylinder and bottom together (if of sheet iron) galvanized orcoated with zinc in the usuaIwell-knovvn manner. I It will be seen thatthe conical corrugated form, described as given to the botto'm,rB, willgreatly increase its strength, and resistance to injury from the fallinglumps of ice, insupplying the cooler therewith.

I-have applied a concave-convex bottom, of: cast iron, to the innercylinder of a portable water=cooler for the samepurpose, but find fromexperience that it is very liable to be.broken by the fallinglumps ofthe ice unless made so thick/ as to be both too costly and too heavy;and therefore have invented and applied the corrugated conicalsheet-metal bottom herein described, and find that it efi'ectually meetsthe requirements of durability,

lightne'ss,-and inexpensiveness;

Having thus fully described my improvement, and shown its utility, whatI claim as new, and desire to secure by Letters Patent, is confined tothe following, viz:

I claim a sheet-metal water-cooler, having the bottom, B, of its innercylinder, A, made of sheet metal,

raised and corrugated substantially as described and shown, for thepurpose specifiedl JOHN L. HADDEN- Witnesses r BENJ. Monrson, JonNWHITE.

